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CRT (Cathode Ray Tube) Chen-Ching Ting () Mechanical Engineering, National Taipei University of Technology () Homepage: http://cct.me.ntut.edu.tw/ E-mail: [email protected] March 17, 2008 Chen-Ching Ting () Mechanical Engineering, National Taipei University of Technology (http CRT (Cathode Ray Tube) March 17, 2008 1 / 47

Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

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Page 1: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

陰極射線管CRT (Cathode Ray Tube)

Chen-Ching Ting(丁振卿)

Mechanical Engineering National Taipei University of Technology(國立台北科技大學機械系)

Homepage httpcctmentutedutwE-mail chchtingntutedutw

March 17 2008

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 1 47

課程大綱 I

1 激發光顯示器CRT (Cathode Ray Tube)VFD (Vacuum Fluorescent Display)FED (Field Emission Display)PDP (Plasma Display Panel)

2 CRT發展史

3 CRT構造與原理電子槍磁性介紹光學成像集束偏向

影像管蔭罩

螢光面

4 CRT種類Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 2 47

課程大綱 II

直視型CRT投影式CRT薄型CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 3 47

參考文獻 I

顧鴻壽周本達陳密張德安樊雨心周宜衡 光電平面面板顯示器基本概論ISBN=986-412-001-8高立圖書有限公司2004

E Hecht Optics Addison Wesley Co New York 2001

W Lauterborn T Kurz and M Wiesenfeldt Coherent OpticsFundamentals and Applications Springer Verlag Berlin 2003

PG Gennes The Physics of Liquid Crystals ISBN=0-19-851785-8Clarendon Press Oxford 1998

影像顯示科技種子師資培育計劃課程講義2005

趙中興顯示器原理與技術ISBN=957-21-2724-1全華科技圖書股份有限公司1999

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 4 47

參考文獻 II

趙中興有機EL顯示面板的原理與技術ISBN=957-21-4782-X全華科技圖書股份有限公司2005

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 5 47

激發光顯示器 PDP (Plasma Display Panel)

CRT顯示器

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 6 47

CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 7 47

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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課程大綱 I

1 激發光顯示器CRT (Cathode Ray Tube)VFD (Vacuum Fluorescent Display)FED (Field Emission Display)PDP (Plasma Display Panel)

2 CRT發展史

3 CRT構造與原理電子槍磁性介紹光學成像集束偏向

影像管蔭罩

螢光面

4 CRT種類Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 2 47

課程大綱 II

直視型CRT投影式CRT薄型CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 3 47

參考文獻 I

顧鴻壽周本達陳密張德安樊雨心周宜衡 光電平面面板顯示器基本概論ISBN=986-412-001-8高立圖書有限公司2004

E Hecht Optics Addison Wesley Co New York 2001

W Lauterborn T Kurz and M Wiesenfeldt Coherent OpticsFundamentals and Applications Springer Verlag Berlin 2003

PG Gennes The Physics of Liquid Crystals ISBN=0-19-851785-8Clarendon Press Oxford 1998

影像顯示科技種子師資培育計劃課程講義2005

趙中興顯示器原理與技術ISBN=957-21-2724-1全華科技圖書股份有限公司1999

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 4 47

參考文獻 II

趙中興有機EL顯示面板的原理與技術ISBN=957-21-4782-X全華科技圖書股份有限公司2005

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 5 47

激發光顯示器 PDP (Plasma Display Panel)

CRT顯示器

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 6 47

CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 7 47

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 3: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

課程大綱 II

直視型CRT投影式CRT薄型CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 3 47

參考文獻 I

顧鴻壽周本達陳密張德安樊雨心周宜衡 光電平面面板顯示器基本概論ISBN=986-412-001-8高立圖書有限公司2004

E Hecht Optics Addison Wesley Co New York 2001

W Lauterborn T Kurz and M Wiesenfeldt Coherent OpticsFundamentals and Applications Springer Verlag Berlin 2003

PG Gennes The Physics of Liquid Crystals ISBN=0-19-851785-8Clarendon Press Oxford 1998

影像顯示科技種子師資培育計劃課程講義2005

趙中興顯示器原理與技術ISBN=957-21-2724-1全華科技圖書股份有限公司1999

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 4 47

參考文獻 II

趙中興有機EL顯示面板的原理與技術ISBN=957-21-4782-X全華科技圖書股份有限公司2005

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 5 47

激發光顯示器 PDP (Plasma Display Panel)

CRT顯示器

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 6 47

CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 7 47

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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參考文獻 I

顧鴻壽周本達陳密張德安樊雨心周宜衡 光電平面面板顯示器基本概論ISBN=986-412-001-8高立圖書有限公司2004

E Hecht Optics Addison Wesley Co New York 2001

W Lauterborn T Kurz and M Wiesenfeldt Coherent OpticsFundamentals and Applications Springer Verlag Berlin 2003

PG Gennes The Physics of Liquid Crystals ISBN=0-19-851785-8Clarendon Press Oxford 1998

影像顯示科技種子師資培育計劃課程講義2005

趙中興顯示器原理與技術ISBN=957-21-2724-1全華科技圖書股份有限公司1999

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 4 47

參考文獻 II

趙中興有機EL顯示面板的原理與技術ISBN=957-21-4782-X全華科技圖書股份有限公司2005

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 5 47

激發光顯示器 PDP (Plasma Display Panel)

CRT顯示器

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 6 47

CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 7 47

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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參考文獻 II

趙中興有機EL顯示面板的原理與技術ISBN=957-21-4782-X全華科技圖書股份有限公司2005

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 5 47

激發光顯示器 PDP (Plasma Display Panel)

CRT顯示器

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 6 47

CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

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CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

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CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

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CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

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CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

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Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

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Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

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平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

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CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

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近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

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透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 6: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

激發光顯示器 PDP (Plasma Display Panel)

CRT顯示器

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 6 47

CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 7 47

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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CRT發展史

CRT發展史

1897 K F Braun發明布朗管(陰極射線管)在此之前便有陰極射線的應用主要在觀測物理現象

1907 在俄國1908 在英國發表把陰極射線應用在電視顯示元件

1924 丹維利亞(Danvillier) 1926 迪克曼(Dieckmann)進行接收影像實驗同年成功完成『人』字形的影像接收在此之前所使用的電子槍為熱(燈絲)陰極藉由氬氣電離來進行集束CRT亮度低

1929 發表具雙電位透鏡之靜電集束電磁偏向CRT命名為影像管(Kinescope)

1930 前後世界大量進行使用CRT電視

1933 茲伯利肯發表攝影用之光電攝影管(Iconoscope)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 7 47

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

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屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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            • ordffrac12microoslashlaquonotCRT
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            • AacuteiexcllaquonotCRT
Page 8: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT發展史

CRT發展史

蔭罩(Shadow Mask)的引用使CRT進入彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 8 47

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 9: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT發展史

CRT發展史

彩色顯示器的發展原本專注在增加亮度以達色彩之鮮艷度但在黑陣列(Black Matrix) 的引用使得顯示器提前進入更加多彩多姿的彩色時代

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 9 47

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 10: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT發展史

CRT發展史

黑陣列(Black Matrix)的應用可增加顏色的視覺亮度感覺與顏色對比強度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 10 47

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading convexlensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 11: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT發展史

CRT顯示器優點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 11 47

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 12: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT發展史

CRT顯示器缺點

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 12 47

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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Page 13: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

CRT構造與原理

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 13 47

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

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Hall Effect

CRT構造與原理 電子槍

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Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

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透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading convexlensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

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CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

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CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 14: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

CRT構造與原理

1 電子槍1 磁性介紹2 光學成像3 集束

1 靜電集束2 電磁集束

4 偏向

2 影像管1 蔭罩

2 螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 14 47

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading convexlensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 15: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

CRT構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 15 47

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

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CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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Page 16: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

彩色CRT

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 16 47

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 17: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

CRT TV 構造

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 17 47

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 18: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

蔭罩與螢光面

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 18 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • FED (Field Emission Display)
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CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 19 47

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 20: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理

蔭罩

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 20 47

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading convexlensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 21: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 21 47

CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
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CRT構造與原理 電子槍

電場力與磁場力

帶電粒子(q)在電場(~E )中會受電場力( ~Fe)作用

~Fe = q~E (1)

帶電粒子(q)在磁場(~B)中運動(~v)會受磁場力( ~FB)作用

~FB = q~v times ~B (2)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 22 47

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 23: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

磁性介紹

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 23 47

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading convexlensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 24: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

單位介紹

電流(i)為單位時間(t)流過的電荷數(q)

Ampere =Coulomb

Second(3)

i =dq

dt(4)

磁場(B)為運動中(v)單位電荷(q)所受的磁力(FB)

Tesla =Newton

Coulomb MeterSecond

(5)

=Newton

Ampere middotMeter(6)

B =FB

q middot v(7)

1Tesla = 104Gauss

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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磁場的定義

0

0 sinB

B

F q v BF q vB φ= times

rArr =

0 sinBFB

q vB φ=磁場90θ =

由在磁場中運動的電荷所受的力來定義磁場(B)

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 26: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Lorentz Force Law

在磁場中運動的電荷所受的電磁力和

Lorentz Force Equation

0 0 0 ( )BF q E q v B q E v B= + times = + times

磁力方向與電荷運動方向垂直即磁力對電荷所作的功為0

cos 0B BW F v F v θ= sdot = =

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

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CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

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球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
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Page 27: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

向量積

sinc a bc ab φ= times= cos

c a bc ab φ= sdot=

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 28: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

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CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

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CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 29: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect1879年E H Hall在哈佛大學設計測定導體內電荷符號的方法電流方向即為正電荷行進方向電流反方向即為負電荷行進方向如圖30-8

0BF q v B= times

當銅片以90度夾角置於磁場中銅片上通入電流i電荷移動速度vd磁場B電荷所受的磁力為

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 24 47

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 30: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

安培右手定則

安培右手定則乃在解釋電流感應磁場現象之相對方向方法是對直導線感應磁場手握導線大拇指所指方向為導線上電流流動方向四指所指繞導線旋轉方向為感應磁場方向對螺旋導線感應磁場手握螺旋導線四指所指方向為導線上電流流動方向大拇指所指方向為感應磁場方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 25 47

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 31: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

佛萊明左手定則

佛萊明左手定則乃在解釋磁場中的運動電子所受磁力之方向其中電子運動的反方向即為電流方向食指所指方向為磁場方向中指所指方向為電流方向大拇指所指方向為電子所受磁力之方向另外解釋磁場中的運動電子所受磁力之方向也可以右手定則來表示四指所指方向為電流方向握拳時之四指所指方向為磁場方向大拇指所指方向為電子所受磁力之方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

(Loading concavemirrorswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading convexlensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 32: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect

W dA = times

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 33: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 34: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect

d HR J B d= sdot sdot sdot

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 35: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect

H HV R J B d= sdot sdot sdot由 得知

Hall電壓與磁場密度成正比的關係

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 36: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

Hall Effect

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

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球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 37: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

bullbull Curies early experiments identified three kinds of radiationCuries early experiments identified three kinds of radiation

11 αα (alpha) particles (+2 charge and high mass)(alpha) particles (+2 charge and high mass)22 ββ (beta) particles ((beta) particles (--1 charge and low mass)1 charge and low mass)33 γγ (gamma) particles (no detectable charge or mass)(gamma) particles (no detectable charge or mass)

輻射線電場偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

(Loading concavelensswf)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 38: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子束

A subatomic particle that possesses a unit of negative charge (-1)

bullbull Electrons were first discovered from experiments with Electrons were first discovered from experiments with cathode ray tubescathode ray tubes

bullbull When high voltage is applied When high voltage is applied to the electrodes of a cathode to the electrodes of a cathode ray tube a ray tube a cathode raycathode ray flows flows from the negative electrode from the negative electrode ((cathodecathode) to the positive ) to the positive electrode (electrode (anodeanode))

bullbull The The cathode raycathode ray was assumed was assumed to be a beam of negatively to be a beam of negatively charged particles that we now charged particles that we now know as know as electronselectrons

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 26 47

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 39: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

陰極

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 27 47

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 40: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

光學成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 28 47

CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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            • AacuteiexcllaquonotCRT
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CRT構造與原理 電子槍

光學成像

1 反射(Reflection)1 平面反射成像2 曲面反射成像

1 凸面反射成像2 凹面反射成像

2 折射(Refraction)1 平面折射成像2 曲面折射成像

1 凸面折射成像2 凹面折射成像

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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平鏡面(Planar Mirror)

i rθ θ=

虛發光點(虛像)

實體

眼睛

眼睛

入射角=反射角

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 29 47

CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

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-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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CRT構造與原理 電子槍

平鏡面鏡成像

物像與成像為上下顛倒左右相反的關係

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 30 47

swfreflection02swf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

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球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 44: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

曲面鏡成像原則

1 與軸線平行的光線會通過焦點

2 通過焦點的光線會成與軸線平行的光線

3 通過面鏡曲率中心點的光線對稱軸線反

射

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 31 47

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 45: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

凸面鏡成像

凸面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 32 47

swfconvexmirrorswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

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屏幕

N

S

vBF q B= sdot times

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-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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CRT構造與原理 電子槍

凹面鏡成像

凹面鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

進行探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

swfconcavemirrorswf
Media File (applicationx-shockwave-flash)

球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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球鏡面

近軸成像在 處平行光匯聚成一焦點2R

2R

球面像差(Spherical Aberration)造成原因為球鏡面無法真正將平行主軸的光匯聚成一個焦點而有發散現象

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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Page 48: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

近軸成像

近軸成像主要在減小因球面代替拋物面所造成的誤差

O

y

球面 拋物面 球面與拋物面比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 49: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

透鏡成像

透鏡靠近入射光面的鏡面為第一鏡面另一個鏡面為第二鏡面

第一鏡面 第二鏡面

1與軸線平行的入射光線會通過第一鏡面的焦點

2 通過第二鏡面的焦點光線會成與軸線平行的光線

3 通過透鏡曲率中心點的光線不偏折

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 33 47

CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

swfconvexlensswf
Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
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CRT構造與原理 電子槍

凸透鏡成像

凸透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 34 47

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Media File (applicationx-shockwave-flash)

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

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Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 51: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

凹透鏡成像

凹透鏡成像分成物像位於R外物像位於R與R2間物像位於

R2內等三項

探討

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Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

swfconcavelensswf
Media File (applicationx-shockwave-flash)

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
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Page 52: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

放大率

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 35 47

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 53: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電子槍集束

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 36 47

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 54: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電子槍集束

電子槍集束在螢光幕上的點越小CRT解析度越高能量也越集中顯示器的亮度也越好集束透鏡的發展方向乃以此為方向

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 37 47

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 55: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電場力

~Fe = q~E (8)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 38 47

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 56: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電場匯交與發散

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 39 47

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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Page 57: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

磁場力

~FB = q middot ~v times ~B (9)

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 40 47

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
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            • ordffrac12microoslashlaquonotCRT
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            • AacuteiexcllaquonotCRT
Page 58: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

靜電透鏡與電磁透鏡

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 41 47

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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Page 59: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電磁透鏡

光學顯微鏡是利用玻璃透鏡使可見光聚焦成像的電子和可見光不同它是一帶電粒子不能憑借光學透鏡會聚成像電子顯微鏡可以利用電場或磁場使電子束聚焦成像其中用靜電場成像的透鏡稱為靜電透鏡用電磁場成像的稱為電磁透鏡由於靜電透鏡效能上不如電磁透鏡所以在目前研制的電子顯微鏡中大都採用電磁透鏡下圖是一常用的電磁透鏡剖面圖它由一個鐵殼（A）一個螺旋管線圈（B）和一對中間嵌有黃銅的極靴（C）組成的

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 42 47

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 60: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電子在磁場中的運動

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 43 47

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 61: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 電子槍

電磁透鏡的聚焦作用

1 若v B則F = 0電子不受磁場力作用其運動速度的大小及方向不變

2 若v perp B則F = evB 方向反平行與v times B即只改變運動方向不改變運動速度從而使電子在垂直於磁力線方向的平面上做等速圓周運動

3 若v與B既不垂直也不平行而成一定夾角則其運動軌跡為螺旋線

由此可見一束平行於軸線的入射電子束通過電磁透鏡後將被聚焦於軸線上一點即焦點這表明電磁透鏡與光學玻璃凸透鏡具有相似的聚焦性質

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 62: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

靜電與電磁透鏡

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 63: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子槍集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 64: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電磁集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
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        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 65: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

BPF (Bi-potential Focus)

3 4G Gne電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 66: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

UPF (Uni-potential Focus)

3 5 4G G G= gt電位

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 67: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

複合多段集束

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
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Page 68: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

阻抗分割方式

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 69: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 70: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子束偏向

eminus

屏幕

eminus

屏幕

eminus

屏幕

N

S

vBF q B= sdot times

++++++++++

-----------eF q E= sdot

靜電偏向 電磁偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 71: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 72: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子束偏向

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

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    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
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Page 73: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 74: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

靜電與電磁偏向比較

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 75: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

電子加速

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 76: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

影像管

蔭罩

螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 77: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

影像管

影像管一般乃以玻璃為主要材料為高透明度且能承受高真空所受的大氣壓力同時能吸收X射線

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 78: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 79: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 80: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

蔭罩與螢光面

CRT構造與原理 電子槍

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 44 47

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 81: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT構造與原理 影像管

蔭罩

蔭罩(Shadow Mask)的使用可達到更精準的讓個別電子束打擊在個別的螢光劑上以發出特定顏色的光但也因此遮住電子束影響打擊在螢光劑上的電子束量目前大約有近八成的電子束被遮住無法產生作用因此各種蔭罩的設計主要乃在改善亮度與色彩鮮艷度

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 82: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 83: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 84: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

X射線吸收CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 85: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 86: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 87: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

可見光吸收

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 88: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 89: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

蔭罩與螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 90: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

螢光面製程

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 91: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

二次電子

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 92: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT種類

直視型CRT

投影式CRT

薄型CRT

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 93: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

直視型CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 94: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 95: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

投影式CRTCRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 96: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

反射式薄型CRT

螢光面

電子槍

電磁反射面

薄型CRT的一概念便是透過電磁反射面以投影的技巧達成

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 97: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

蓋伯管

1952年蓋伯(Gabor)所提出沒有成功

電磁反射面

電子束透過電磁反射面反射後再由垂直掃瞄陣列電極驅動撞擊螢光面

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 98: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

愛肯管

與蓋伯管類似1960初有成品做出來主要為軍方所用自1960中期便不再有相關研究報告

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 99: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

扁平管

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 100: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

影像掃瞄

單次全影像掃瞄

雙次半影像掃瞄

CRT構造與原理 影像管

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 45 47

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 101: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT種類 薄型CRT

結結結論論論

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 46 47

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT
Page 102: Ú CRT (Cathode Ray Tube)† ’– I 1 À|Io:h CRT (Cathode Ray Tube) VFD (Vacuum Fluorescent Display) FED (Field Emission Display) PDP (Plasma Display Panel) 2 CRT|Uò 3 CRT¸ ßP˝

CRT種類 薄型CRT

結論

CRT開創了影像顯示器的時代雖然在先進國家其市場已逐漸由其他平面顯示器所取代但因其技術的成熟與價錢的高競爭力CRT市場已漸轉向較落後的國家而且CRT的技術概念也帶動近來平面顯示器的發展如彩色濾光片及黑陣列等概念

Chen-Ching Ting (丁振卿) Mechanical Engineering National Taipei University of Technology (國立台北科技大學機械系) Homepage httpcctmentutedutw E-mail chchtingntutedutw ()陰極射線管CRT (Cathode Ray Tube) March 17 2008 47 47

  • iquestEmicrooyenuacuteAringatildeyenUumlfrac34sup1
    • CRT (Cathode Ray Tube)
    • VFD (Vacuum Fluorescent Display)
    • FED (Field Emission Display)
    • PDP (Plasma Display Panel)
      • CRTmicrooregiyenv
      • CRTordmcsup3yraquoPigravesup2z
        • sup1qcurrenlordmj
        • frac14vsup1sup3ordmTHORN
          • CRTordmOslashAtildethorn
            • ordffrac12microoslashlaquonotCRT
            • secteumlfrac14vbrvbariexclCRT
            • AacuteiexcllaquonotCRT

Monitor LCD Manual del usuario - Microsoft · • Las pantallas LCD, como las pantallas de plasma (PDP) y de tubo de rayos catódicos (CRT, Cathode Ray Tube) convencionales, también

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